What colour should 2t spark plug be ?

[firefox]

I have recently put a new ngk r spark plug into my 50cc 2t. i removed it to make sure it was still fine ect. when removed the cathod that is usally white is now tan. and round the top is black ? what does this mean thanks.


https://img30.imageshack.us/img30/2184/spark9ig.jpg

[kb-zxr]

A dark chocolate brown is the best i believe.

Anything white is bad, means its running lean. Brown should be OK as long as it isn't oilly or really carbony (is that a word?)

[firefox]

well it is a brown colour as you can see from the pic. so this is fine ? cheers just that it will never start atm in the cold dont know why it has just started to happen, takes like 12 kicks to get it to fire.

[kb-zxr]

Yeah should be OK. If you got a Haynes manual for anything they usually have a guide in there somewhere with lots of pictures of spark plugs.

Kurt

[bristol_sports_bikes]

follow this liink ,it has pics and info about spark plugs and its colours
very good
>https://www.dansmc.com/spark_plugs/spark_plugs_catalog.html
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honda vfr nc30 1991

[Bec]

I have looked in my manual to see where a 2t spark plug goes and I can't find it! Can someone tell me where it is please?

[kb-zxr]

Top of the cylinder above the piston I imagine

Follow the HT lead to the engine. Take that cap off. That thing poking out is the plug. Should say in the handbook too.

[Bec]

Where is that on a mo-ped all I can find is my air filter !?

[stinkwheel]

It is a wee bit oily from your picture. Better a bit oily than not oily enough.

Looks fine to me, They should be a biscuity brown colour, I tend to err on the dark side of brown (indicating a richer mixture), I don't really worry if there is some oil floating about there either providing it isn't interfering with the plugs functioning.

You will only get a real idea of how the engine is running by doing a 'plug chop' after riding the bike at full throttle for a while. Warm it up, go for a ride at full throttle, kill the engine, pull the clutch and come to a halt. Then check the plug, the colour of the electrode will then reflect how the bike is running at fully open throttle positions (which is where a 125 2t spends most of its life)
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

[mchaggis]

[Skunkcap Freddie]

that looks fine mate,